22645244365 has 4 divisors (see below), whose sum is σ = 27174293244. Its totient is φ = 18116195488.

The previous prime is 22645244357. The next prime is 22645244381. The reversal of 22645244365 is 56344254622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15355670724 + 7289573641 = 123918^2 + 85379^2 .

It is a cyclic number.

It is not a de Polignac number, because 22645244365 - 2³ = 22645244357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2264524432 + ... + 2264524441.

It is an arithmetic number, because the mean of its divisors is an integer number (6793573311).

Almost surely, 2^22645244365 is an apocalyptic number.

It is an amenable number.

22645244365 is a deficient number, since it is larger than the sum of its proper divisors (4529048879).

22645244365 is an equidigital number, since it uses as much as digits as its factorization.

22645244365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4529048878.

The product of its digits is 1382400, while the sum is 43.

Adding to 22645244365 its reverse (56344254622), we get a palindrome (78989498987).

The spelling of 22645244365 in words is "twenty-two billion, six hundred forty-five million, two hundred forty-four thousand, three hundred sixty-five".